Improvement in bellows for carbureting apparatus



2Sheets--Sheetl. F. A. FISHER 8|. W. H. DARBY. Bellows for Carhuretng Apparatus.

PatentedMarchi7.'1874.

2Sheets--Sheet2. F. A. FISHER &. W. H. DABBY.

Bellows for Carbureting Apparatus. NM1/18,603. Patented March17,874.

www, @Mw fm ff y UNITED STATES PATENT OFFICE.

FISHER AMES FISI-IER AND WILLIAM H.' DARRY, oF ELIZABETH, NEW JERSEY, AssIGNoRS To FISHER a TALLMAN, oF SAME PLAGE.

IMPROVEMENT IN BELLQWS FOR CARBURETING APPARATUS.

Specification forming part of Letters Pat-ent No. 148,603, dated March 17,1874; application ledv October 14, 1873.

To all 'whom it may concern:

Be it known that we, FISHER AMES FISHER and WILLIAM I-I. DARBY, of Elizabeth, in the county of Union and State of New Jersey, have invented an Improvement in Bellows for Gaibureting Apparatus and other uses, otl which the following is a speciiication:

Ditliculty has heretofore arisen in supplyin g atmosphere with regularity to carburetin g apparatus, and preventing the ilicliering of the light by variations in pressure when the supply is open or when it is stopped. In other Inachiiies, where a constant supply of air is desirable, a similar ditiiculty arises, such as in organs, &c.

Our invention consists in a valve applied at the inlet-pipe oi' the reservoir-bellows, and connected to the moving board or diaphragm in such a manner that the pressure upon such diaphragm closes the valve by leverage, and arrests the further inlet of air without increased accumulation ot' pressure, the simple rising of such bellows-board effecting said ob ject.

series of bellows connected with the reservoirbellows.

The bottom boarda, top board e or diaphragm, and intermediate frame c, are of usual character, and receive the leather or other ilexible covering or sides t. The exit nozzle or pipe is at lw, and the inlet pipe or tube p is connected to the bottom board a, and a valve, k, is iitted to a seat at the end of this pipe p. rlhe lever Z swings upon. the fulerum 1T, and is connected, at the longer end,to the diaphragm or top board c, so as to rise and fall with the same. The shorter end of the lever l opcrates upon the valve k, and closes the same, and prevents air passing in until the valve is partially relieved by air passing out of this reservoir or storage bellows, and the top or diaphragm c descends.

It is preferable toemploy the weights u and arm to give uniformity of pressure to the contents ot' the bellows, whether the bellows is full, or only partially full.

IVe have shown in Fig. 3 an arrangement of four ordinary bellows, o, operated by the shaftk, cranks l', and rods m, successively, so that the supply through the pipes p will be constant 5 but when the valve 7s is closed, or partially closed, the shat't 7s will move slowly or be stopped by the resistance of the bellows. The drinn a, cord c', and weight acting through the gearing cfg/1l', are shown for rotating this shaft k.

le claim as our invention- The lever l, connected at one end to the moving beard or diaphragm of the reservoir-bellows, in combination with the valve 7c, applied to the inlet-pipe p to such bellows, and operated upon by the short end of such lever, as Set forth.

Signed by us this 21st day of' August, A. D. 1873.

FISHER AMES FISI-IER. VILLIAM I-I. DAR-BY.

Witnesses WM. M. TALLMAN, HOWARD RICHARDS. 

